New Non-linear Inverse Quantization Algorithm and Hardware Architecture for Digital Audio Codecs 


Vol. 33,  No. 1, pp. 12-18, Jan.  2008


PDF Full-Text
  Abstract

This paper This paper proposes a new inverse-quantization (IQ) table interpolation algorithm, specialized Digital Signal Processor (DSP) instructions and hardware architecture for digital audio codecs. Non-linear inverse quantization algorithm is representatively used in both MPEG-1 Layer-3 and MPEG-2/4 Advanced Audio Coding (AAC). The proposed instructions are optimized for the non-linear inverse quantization. The proposed algorithm can minimize operational complexity which reduces total computational load. Performance comparisons show a significant improvement of average error. The proposed instructions and hardware architecture can reduce 20% of the instruction counts and minimize computational loads of IQ algorithms effectively compared with existing IQ table interpolation algorithms. Proposed algorithm can implement commercial DSPs.

  Statistics
Cumulative Counts from November, 2022
Multiple requests among the same browser session are counted as one view. If you mouse over a chart, the values of data points will be shown.


  Cite this article

[IEEE Style]

J. H. Moon, J. H. Baek, M. H. Sunwoo, "New Non-linear Inverse Quantization Algorithm and Hardware Architecture for Digital Audio Codecs," The Journal of Korean Institute of Communications and Information Sciences, vol. 33, no. 1, pp. 12-18, 2008. DOI: .

[ACM Style]

Jong Ha Moon, Jae Hyun Baek, and Myung Hoon Sunwoo. 2008. New Non-linear Inverse Quantization Algorithm and Hardware Architecture for Digital Audio Codecs. The Journal of Korean Institute of Communications and Information Sciences, 33, 1, (2008), 12-18. DOI: .

[KICS Style]

Jong Ha Moon, Jae Hyun Baek, Myung Hoon Sunwoo, "New Non-linear Inverse Quantization Algorithm and Hardware Architecture for Digital Audio Codecs," The Journal of Korean Institute of Communications and Information Sciences, vol. 33, no. 1, pp. 12-18, 1. 2008.

Search
(IN TITLE, AUTHOR, ABSTRACT,KEYWORDS)

Advanced Search ▼

POPULAR KEYWORDS
(TOP 10 KEYWORDS)

Recent Publications
(LAST 3 YEARS)






pISSN : 1226 - 4717
eISSN : 2287 - 3880